Carbon Steel Flange: 1.Competitive price,small order allowed 2.ISO9001:2008,14001 3.1/2''-240''(DN15 to DN6000) 4.Sample We are ... a reliable supplier that can make Carbon Steel Flange. Here ... good qualit,low MOQ and short lead time Carbon Steel Flange (ANSI, DIN, JIS, EN1092-1)